package com.bite.book.controller;

import com.bite.book.enums.StatusEnum;
import com.bite.book.model.BookInfo;
import com.bite.book.model.PageResult;
import com.bite.book.model.RequestPage;
import com.bite.book.model.Result;
import com.bite.book.service.BookService;
import jakarta.servlet.http.HttpSession;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@Slf4j
@RequestMapping("/book")
@RestController
public class BookController {

    @Autowired
    private BookService bookService;

    @RequestMapping("/getListByPage")
    public Result<PageResult<BookInfo>> getListByPage(RequestPage requestPage, HttpSession session){
        log.info("getListByPage 接收参数: {}", requestPage);
        //1. 参数校验/转换
        PageResult<BookInfo> result = bookService.getListByPage(requestPage);
        long end = System.currentTimeMillis();
        return Result.success(result);
    }

    @RequestMapping("/addBook")
    public Boolean addBook(BookInfo bookInfo){
        log.info("BookController.addBook 接收参数: {}", bookInfo);
        //1. 参数校验
        //2. 操作数据库
        //3. 返回结果
        if (!StringUtils.hasLength(bookInfo.getBookName())
                || !StringUtils.hasLength(bookInfo.getAuthor())
                || bookInfo.getCount()==null
                || bookInfo.getPrice() == null
                || !StringUtils.hasLength(bookInfo.getPublish())){
            log.warn("参数不正确");
            return false;
        }
        Integer result = bookService.addBook(bookInfo);
        if (result==0){
            log.error("添加图书失败");
            return false;
        }
        return true;
    }

    /**
     * 根据ID获取图书信息
     * @param bookId
     * @return
     */
    @RequestMapping("/getBookInfo")
    public BookInfo getBookInfo(Integer bookId){
        log.info("getBookInfo, bookId: {}", bookId);
        //需要看接口约定, 当图书信息不存在时, 返回null, 还是返回空对象.
        BookInfo bookInfo = bookService.getBookInfo(bookId);
//        if (bookInfo ==null){
//            return new BookInfo();
//        }
        return bookInfo;
    }

    /**
     * 更新图书
     * @param bookInfo
     * @return
     */
    @RequestMapping("/updateBook")
    public Boolean updateBook(BookInfo bookInfo){
        log.info("updateBook, bookInfo: {}", bookInfo);
        if (bookInfo.getId()==null){
            log.warn("Id不能为空");
            return false;
        }
        if (bookInfo.getBookName()!=null && "".equals(bookInfo.getBookName().trim())){
            log.warn("图书名称不能为空");
            return false;
        }

        try {
            Integer result = bookService.updateBook(bookInfo);
            if (result >0){
                return true;
            }
            return false;
        }catch (Exception e){
            log.error("updateBook error, e: {}", e);
            return false;
        }

    }

    @RequestMapping("/deleteBook")
    public Boolean deleteBook(Integer bookId){
        log.info("deleteBook, id: "+bookId);
        try {
            BookInfo bookInfo = new BookInfo();
            bookInfo.setId(bookId);
            bookInfo.setStatus(StatusEnum.DELETED.getCode());
            Integer result = bookService.updateBook(bookInfo);
            if (result >0){
                return true;
            }
            return false;
        }catch (Exception e){
            log.error("deleteBook error, e: {}", e);
            return false;
        }
    }

    @RequestMapping("/batchDelete")
    public Boolean batchDelete(@RequestParam List<Integer> ids){
        log.info("batchDelete ids:{}", ids);
        if (ids==null || ids.size()==0){
            //没有任何需要删除的数据
            return true;
        }
        try {
            Integer result = bookService.batchDelete(ids);
            if (result >0){
                return true;
            }
            return false;
        }catch (Exception e){
            log.error("batchDelete error: ", e);
            return false;
        }

    }


}
